133320121 has 8 divisors (see below), whose sum is σ = 151763904. Its totient is φ = 115930320.

The previous prime is 133320113. The next prime is 133320127. The reversal of 133320121 is 121023331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133320121 - 2³ = 133320113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133320095 and 133320104.

It is not an unprimeable number, because it can be changed into a prime (133320127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263226 + ... + 263731.

It is an arithmetic number, because the mean of its divisors is an integer number (18970488).

Almost surely, 2^133320121 is an apocalyptic number.

133320121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133320121 is a deficient number, since it is larger than the sum of its proper divisors (18443783).

133320121 is a wasteful number, since it uses less digits than its factorization.

133320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526991.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 133320121 is about 11546.4332588033. The cubic root of 133320121 is about 510.8560798122.

Adding to 133320121 its reverse (121023331), we get a palindrome (254343452).

The spelling of 133320121 in words is "one hundred thirty-three million, three hundred twenty thousand, one hundred twenty-one".